Re: Avon used parts?
Wow.. I actually know what you're talking about, but I really doubt you'll find one easily. You could try looking on web sites in the UK, there are a lot more Avon boats over there than here.
Mostly in the US you find them in use in dive operations and the like, and more of them are in florida and the gulf coast than in the rest of the states.
You might also try searching for aluminum channel on some of the industrial supply places, like mcmaster-carr. I doubt Avon had the channel custom made for their boats, more likely it's a stock product somewhere.
Good luck,
Erik